Character of the Church

1. Why has the church done so little good and so much harm in 2000 years, while science has demonstrated remarkable progress in only 500 years?
Why is the period when the church dominated western history universally referred to as the Dark Ages, while the period of breaking away from church dogma is called the Enlightenment?
2. Why are the Crusades and the Inquisition and other church-sponsored atrocities politely ignored in many church education programs, leaving church members to learn of these in other venues, or, more likely, to remain ignorant of the heritage of the institution to which they belong and contribute.
3. Why does the church conceal and ignore and misrepresent legitimate criticisms and critics?
If Christianity is undoubtedly true, why doesn't the church demonstrate it by refuting the whole body of skeptical literature in Sunday School classes?
The church isn't trying to hide something is it?
How can the church possibly maintain credibility when it is so blatantly partisan on the side of dogma, and obviously not dispassionately seeking truth wherever the evidence may lead.
4. Why do so many members of the church dismiss the veracity of unbelief without even giving it a fair hearing, especially in light of biblical condemnations of this behavior, such as "He who answers before listening - that is his folly and his shame," (Proverbs 18:13, NIV), and "The first to present his case seems right, till another comes forward and questions him," (Proverbs 18:17, NIV), for example.